4b/2b-5=13

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Solution for 4b/2b-5=13 equation: 


b in (-oo:+oo)

((4*b)/2)*b-5 = 13 // - 13

((4*b)/2)*b-13-5 = 0

2*b^2 = 18 // : 2

b^2 = 9

b^2 = 9 // ^ 1/2

abs(b) = 3

b = 3 or b = -3

b in { 3, -3 }

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